Sheet metal



(No Model.) 5 Sheets-Sheet l. I. 0. WILSON & Z. H. BOOLS.

MACHINE FOR WIRING SHEET METAL.

Patented May 8, 1883.

(No Model.) 5 Sheets-Sheet 2. F. 0. WILSON & Z. H. BOOLS.

MACHINE FOB. WIRING SHEET METAL.

Patented May 8, 1883.

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(No Model.) 5 Sheets-Sheet 3. F. 0. WILSON & Z. H.'BO0LS.

MACHINE FOR WIRING SHEET METAL. v No. 277,180. Patented May 8,1883.

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vMACHINE FOR WIRING SHEET METAL.

No. 277,180. Patented May 8,1883.

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(No Model.) 5 Sheets-Sheet 5. F. 0. WILSON 8; Z. H. BOOLS.

MACHINE FOR WIRING SHEET METAL.

Patented May 8, 1883.

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UNITED STATES PATENT, OFFICE.

F. GORTEZ WILSON AND ZADOGK H. BOOLS, OF CHICAGO, ILLINOIS; SAID BOOLSASSIGNOR TO SAID WILSON.

MACHINE FOR WIRING SHEET METAL.

SPECIFICATION forming part ofLetters Patent No. 277,180, dated May 8,1883.

Application filed January 8, 1883. (No model.)

To all whom it may concern Be it known that we, F. GORTEZ WILSON andZADOGK H. BO0Ls,-residing at Chicago, in the county of (look and Stateof Illinois, and citizens of the United States, have invented new anduseful Improvements in Machines for WiringSheet Metal, of which thefollowing is a full description, reference being had to the accompanyingdrawings, in which- Figure 1 is a front elevation. Fig. 2 is a detail,being a front elevation of the part shown. Fig. 3 is a verticalcross-section at line a of Fig.1, so far as the parts shown at Fig. 1are represented in Fig. 3. Fig. 4 is a plan of the parts shown, theframe or case which carries the rollers being removed. Fig. 5 is avertical section taken through the first pair of rollers; Fig. 6, asection through the second pair of rollers; Fig. 7, a section throughthe third pair of rollers Fig. 8, a section through the fourth pair ofrollers; Fig. 9, a section through the fifth pair of rollers. Figs. 5 to9, inclusive, are enlarged, and are two thirds of full size. Fig. 10 isa plan view, and Fig. 11 a detail showing the clamping-bar, and meansfor raising and lowering the same and retaining it laterally on thetable.

The object of this invention is to construct a machine by the use ofwhich the edge of a piece of sheet metal can be rapidly and effectuallyturned over a piece of wire. This is an essential operation inmanufacturing many articles. We accomplish the desired result by meansof a series of rollers arranged in pairs and supported in a case orframe, which can be made to travel back and forth upon a track in frontof a table, upon which the sheet metal to be operated upon is to beclamped. The

rollers are formed and arranged substantially as shown and described.

In the drawings, A represents a table.

B is a clamping-bar for holding the sheet metal firmly on thetable. Thisbar is adapted to be raised and lowered, and also to be adjustedlaterally on the table, which can be effected by suitable devices. Ashere shown, we accomplish these movements by providing each end of thebar with a chamber having lateral flanges 1 at its top. The table isprovided with transverse T-shaped slots 2, in each of which is fittedthe T-shaped head 3 of a screw-threaded rod, 4, having a transverse pin,5, at its upper end, to which is pivoted the cam 6, havinga handle, 7 Onthe screw-threaded part of the rod 4c is fitted a nut, 8, having ahandle, 9. By raising the handles 7 the camslift the bar by acting onthe flanges 1, and by depressing the said handles the bar will bepressed down upon the table. By loosening the nuts 8 through the mediumof their handles 9 the bar can be laterally adjusted and held inposition by tightening the nuts down upon the table. The handles 7 ofthecams are connected by a rod, 0, so that both are movedsimultaneously. These special adjusting devices are not here claimed, asthey form the subject-matter of a separate application filed of evendate herewith.

D is a rack under and secured to the front edge of the table. As shown,it is cast with a part of the table. In front of the table there is adouble track, E E, supported in any suitable manner.

H are flanges extending downward from the under side of the platform G,which flanges are provided with lateral projections a, which entergrooves 12 upon the inside of the tracks E E.

I is a shaft supported, as shown, in a long bearing in the platform G.Upon the inner end of such shaft is a cog-wheel, J, which engages withanother cog-wheel, K, which is supported upon another shaft located insuitable bearings in or upon the platform G. The cog-wheel K engageswith the rack vD.

his a crank upon the outer end of the shaft I. M is a frame or case,inwhich the operating rollers are secured, which is open upon one side,and is provided with flanges c. This frame M is secured to the platformG by means of bolts i, which pass through the flanges c.

There are five pairs of rollers, as shown, which perform the work ofturning the sheet metal over the wire, which are supported in the frameM, so that they can be adjusted in different positions, which may beaccomplished by securing each pair of rollers to a separate block andsecuring the block upon the inside of the frame M, which, as shown, iscircular. In Fig. 5 I have shown the first pair of rollers, which arelocated near the right-hand end of the frame M, looking at Fig. 1. Theupper one of these rollers, O,is provided with a circular groove, d, inits face to receive the wire 0, over which the edge of the sheet ofmetalf is to be turned. The lower roller, is formed sub stantially asshown, and so that it will bend the edge of the sheet metal upward alittle. These two rollers are pivoted in a block, 9, the

- back side of which fits the inside of the frame P P are the secondpair of operatingrollers. They are secured to another block, g,

which is substantially like the block g, andthey rotate upon journals,the same as rollers O O, and the block g is secured in the frame M inthe same manner as is g, but in a dilferent position. The roller P isprovided with a groove in its face adapted. to receive the wire. Theroller P is formed as shown, and has in its face a groove, which will beunderstood from the drawings. (See Fig. 6.)

Q Q, represent the third pair of rollers, which rotate upon journalssecured to another block, g, similar to g, which is secured upon theinside of the frame M, as before described,- but in a differentposition. (See Fig. 7.)

In Fig.8 I have shown the fourth pair of rollers, It R, and in Fig. 9the fifth pair, S S. The rollers R R rotate'upon journals secured to aseparate block, 9', which block is secured in the frame, as beforedescribed, and S S also rotate upon journals secured to another similarblock, 9 also secured to the frame M, as before described.

The form of each roller will be better understood from an inspection ofthe drawings than from a written description. So, too, the positions ofthe rollers will be understood from the drawings. In Figs. 1 and 2 ofthe drawings the figures l 2 3 at 5 indicate the places where tworollers must be adapted to the size of the wire used, and hence it isnecessary to change these rollers for different sizes of wire; but allthe other rollers can beused with wire of several different sizes.

It of 'course takes more metal to cover a large wire than a small one,and hence the position of the edge of the sheet of metal, or theposition of the rollers relative thereto, must be changed, as required,by the use of wire of difierent sizes. We find it more convenient toalways adjust the edge of the SlIH et upon a given line than to changeits position for the purpose mentioned, and have therefore secured theframe M upon the platform Gr, so that such frame can be adjustedlaterally. This we do by providing slots in the flanges 0, through whichthe bolts 6 pass. This is a desirable feature, and in use savesconsiderable labor in handling the sheets.

The operation is as follows: The sheet of metal which is to be wired isto be clamped upon the table with its front edge projecting beyond thetable a suitable distance to allow the rollers to act upon the same, theframe M, with the rollers therein, having first been carried to theleft-hand end of the machine. A piece of wire is then to be laid uponthe sheet metal, a little distance from the front edge thereof, and itis better to have the end of the wire project a little beyond the end ofthe sheet which is to be operated upon. Then by rotating the crank L theframe M, with the rollers therein, will be made to traval upon the trackE E toward the other end of the table, and by holding the wire in theproper position it will pass in between the pair of rollers'O- O, V

or, more accurately speaking, the rollers will pass along, one over andone under the wire, and as soon as these rollers reach the sheet ofmetal the periphery of the lower roller will act upon the under side ofthe sheet and bend it upward a little, as shown in Fig. 5. When the nextpair of rollers reaches the sheet the wire will be held between them,and the lower roller, P, will bend the edge of the sheet still more, asshown in Fig. 6. When the third pair of rollers, Q Q, reaches the sheet,the wire will be held between them, and the roller Q will bend the edgeof the sheet over the wire, as shown in Fig. 7. When the next pair ofrollers, RR, reaches the sheet, the upper roller, It, will act upon thesheet and bend it over the wire still farther, as shown in Fig. 8. Whenthe next pair of rollers, S S, reaches the IIO sheet, they will finishthe-operation, bringing the edge of the sheet over the wire into theposition shown in Fig. 9. During the entire operation, after. the wirepasses in between the first pair of rollers, it will be held in place bya the rollers, and the edge of the sheet will be gradually turned overthe wire, as stated, and when the rollers leave the sheet its edge willhave been turned over the wire the whole length of the sheet perfectly,and as shown'in Fig. 9.

The wire shown in the drawings, Figs. 5 to metal around and in' contactwith the wire to 9, is supposed to be three-sixteenths of aninch indiameter. The two rollers of each pair should be a little nearertogether if smaller wire were used, and a little farther apart forlarger wire.

What we claim as new, and desire to secure by Letters Patent, is asfollows:

1. A machine for wiring the edges of sheet metal, composed,essentially,of a case or frame and a series of pairs of rollers constructed toreceive and hold the sheet of metal and the wire laid thereon, and togradually bend the permanently confine the latter within the folded edgeof the metal, substantiallyias described.

2. A series of rollers formed and arranged substantially as set forth,and suitably supported, in combination with a table, to hold carries therollers can be made to travel, substantially as and for the purposespecified.

3. In a machine for wiring sheet metal, in combination with a travelingplatform, a case carrying a series of rollers, and detachably connectedwith such platform, whereby the case can be adjusted laterally upon theplatform, substantially as and for the purpose specified.

F. GORTEZ WILSON. ZADOGK H; BOOLS.

